Foldable battery pack and electric equipment

Abstract

The utility model discloses a foldable battery pack and electric equipment, the foldable battery pack comprises a plurality of battery pieces and a protective film for protecting the plurality of battery pieces, and two opposite sides of each battery piece are respectively provided with a group of extraction electrodes; and the plurality of battery pieces are connected in series through the flexible connecting pieces connected with the extraction electrodes, and can be folded through the flexible connecting pieces. According to the foldable battery pack and the electric equipment provided by the embodiment of the invention, the plurality of battery pieces can be folded through the flexible connecting pieces, so that when the plurality of battery pieces are in an unfolded state, the foldable battery pack can be in an unfolded state, and the whole foldable battery pack is in a flat shape; and when the plurality of battery pieces are in a completely folded state, the foldable battery pack is in a folded state, and the whole foldable battery pack is in a square shape. According to the arrangement, the range of electric equipment applied to the foldable battery pack can be expanded, and the design complexity and limitation of the electric equipment are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and particularly relates to a foldable battery pack and an electric device. BACKGROUND

[0002] In the field of battery technology, soft-pack batteries constitute an important form of battery packs due to their unique winding process. However, such battery packs formed by the winding process have fixed length, width, and height three-dimensional dimensions, exhibiting a static and unchangeable spatial form. Looking at the market demand side, various electric devices reserve installation spaces for battery packs, which present high diversity and uncertainty. These spaces not only vary in size, but also may include various geometric configurations such as cubic shapes (cuboid or square) and flat shapes.

[0003] In view of this, the current soft-pack battery pack technology encounters significant challenges in adaptability: the fixed spatial occupation form greatly limits the range of electric devices to which the battery pack can be applied, requiring the electric device to be equipped with a large enough or specific-shaped battery installation area to meet the installation requirements of such battery packs. This limitation not only narrows the market adaptability of soft-pack batteries, but also increases the complexity and limitations of electric device design, and there is an urgent need for a more flexible battery pack solution that can adapt to diversified installation space requirements. CONTENT OF THE UTILITY MODEL

[0004] One of the purposes of the present application is to provide a foldable battery pack and an electric device to expand the range of electric devices to which the battery pack can be applied and reduce the complexity and limitations of electric device design.

[0005] To achieve the above-mentioned application purposes, the technical solutions adopted by the present application are as follows:

[0006] The first aspect of the embodiment of the present application provides a foldable battery pack, which includes a plurality of battery pieces and a protective film for protecting the plurality of battery pieces. Each battery piece has a group of lead-out electrodes on opposite sides thereof. The plurality of battery pieces are connected by soft connecting pieces to realize series connection of the lead-out electrodes and are foldable by the soft connecting pieces.

[0007] Optionally, the foldable battery pack includes an even number of battery pieces, and the same side of the foldable battery pack has two groups of lead-out electrodes.

[0008] Optionally, the foldable battery pack includes an odd number of battery pieces, and opposite sides of the foldable battery pack each have a group of lead-out electrodes.

[0009] Optionally, the group of lead-out electrodes includes a lead-out positive electrode and a lead-out negative electrode.

[0010] A second aspect of the embodiment of the present application provides a power consuming device, comprising the foldable battery pack and a battery mounting space for mounting the foldable battery pack.

[0011] Compared with the prior art, the embodiment of the present application has the following beneficial effects:

[0012] The foldable battery pack and the power consuming device provided by the embodiment of the present application can be folded by the soft connecting pieces, so that when the plurality of battery pieces are in the unfolded state, i.e. the foldable battery pack is in the unfolded state, the foldable battery pack is in the flat shape; when the plurality of battery pieces are in the completely folded state, i.e. the foldable battery pack is in the folded state, the foldable battery pack is in the cuboid shape (cuboid or square). In this way, the range of the power consuming device to which the foldable battery pack is applied can be expanded, and the complexity and limitation of the design of the power consuming device can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0014] Figure 1 An exploded view of the foldable battery pack in the unfolded state is shown.

[0015] Figure 2 A structural view of the foldable battery pack in the unfolded state is shown.

[0016] Figure 3 An exploded view of the foldable battery pack in the half-folded state is shown.

[0017] Figure 4 A structural view of the foldable battery pack in the half-folded state is shown.

[0018] Figure 5 A structural view of the foldable battery pack in the folded state is shown.

[0019] FIG. 1 shows a structural view of a foldable battery pack in the unfolded state.

[0020] 11, battery piece; 111, lead-out electrode; 12, protective film; 13, soft connecting piece. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, further detailed description will be made in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] In addition, the terms "first", "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0024] In order to illustrate the technical solutions described in the present application, specific embodiments will be described below.

[0025] Please refer to Figures 1 to 5 As shown in the figure, the embodiment of the present application provides a foldable battery pack, which includes a plurality of battery pieces 11 and a protective film 12 for protecting the plurality of battery pieces 11. Each battery piece 11 has a set of lead-out electrodes 111 on opposite sides, respectively. The plurality of battery pieces 11 are connected by a soft connecting piece 13 to connect the lead-out electrodes 111 in series and are foldable by the soft connecting piece 13. For example, a set of lead-out electrodes 111 includes a lead-out positive electrode and a lead-out negative electrode.

[0026] The embodiment of the present application does not make specific limitations on the structure of the protective film 12 and the soft connecting piece 13. For example, as shown in Figure 1 and Figure 2 The protective film 12 can be divided into two independent protective films 12, for example. The upper and lower two protective films 12 can also be an integral piece. For example, the soft connecting piece 13 can be a wire or a flexible FPC (Flexible Printed Circuit, flexible printed circuit board) connecting piece.

[0027] The embodiment of the present application does not make specific limitations on the structure of the battery piece 11. For example, the battery piece 11 is a lithium ion battery.

[0028] It should be noted that the foldable battery pack can include an even number of battery pieces 11 or an odd number of battery pieces 11.

[0029] As an example, as shown in Figures 1 to 5As shown, the foldable battery pack includes 8 battery pieces 11, and two groups of lead-out electrodes 111 are arranged on the same side of the foldable battery pack.

[0030] As another example, the foldable battery pack includes an odd number of battery pieces 11, and one group of lead-out electrodes 111 is arranged on each of the opposite sides of the foldable battery pack.

[0031] As shown, when the plurality of battery pieces 11 are in the unfolded state, i.e., the foldable battery pack is in the unfolded state, the foldable battery pack has a flat shape. Figure 2 As shown, when the plurality of battery pieces 11 are in the fully folded state, i.e., the foldable battery pack is in the folded state, the foldable battery pack has a cuboid shape (cuboid or square). Figure 5 In this way, the range of the power-consuming device to which the foldable battery pack is applied can be expanded, and the complexity and limitations of the design of the power-consuming device can be reduced.

[0032] In some other embodiments of the present application, a power-consuming device is also provided, which includes the foldable battery pack provided in any of the above embodiments and a battery mounting space for mounting the foldable battery pack.

[0033] As an example, the battery mounting space is adapted to the shape of the foldable battery pack. For example, the battery mounting space has a flat shape and is adapted to the shape of the foldable battery pack in the unfolded state. For another example, the battery mounting space has a cuboid shape and is adapted to the shape of the foldable battery pack in the folded state.

[0034] As an example, the power-consuming device provided in the embodiments of the present application includes but is not limited to power tools (such as electric drills, flashlights), electric toys (such as toy cars, toy guns), electric vehicles (such as electric cars, electric bicycles), etc.

[0035] The power-consuming device provided in the embodiments of the present application uses the foldable battery pack as a power supply, which can reduce the complexity and limitations of the design of the power-consuming device.

[0036] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the foregoing embodiments of the present application are described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A foldable battery pack, characterized by, The foldable battery pack comprises a plurality of battery pieces and a protection film for protecting the plurality of battery pieces, each battery piece is provided with a group of leading electrodes on opposite sides, the plurality of battery pieces are connected by soft connecting pieces to realize series connection of leading electrodes, and the soft connecting pieces are foldable. The foldable battery pack comprises an even number of battery pieces, and the same side of the foldable battery pack has two groups of leading electrodes. The group of leading electrodes comprises leading positive electrodes and leading negative electrodes. The soft connecting piece is a wire or a flexible FPC connecting piece.

2. An electric device characterized by comprising: The foldable battery pack comprises a foldable battery pack according to claim 1 and a battery mounting space for mounting the foldable battery pack.

Images